6063 aluminum alloy is a medium strength alloy, also belongs to aluminum-magnesium-silicon series heat-treatable alloy. 6063 aluminum has a good surface finish, high corrosion resistance, is readily suited to welding and can be easily anodized. Most commonly available as T5 and T6 temper, in the T4 condition it has good formability. And as 6063 aluminum profiles, it's typically used in architectural, window and door frames, shop fittings, irrigation tubing.